Not sure if you guys have followed along with the story, but apparently it wasn't a push...it was a bodyslam. Verne has no short term memory due to the complications of alzheimer's, and it's not known whether it was a legitimate dispute in person, or whether he was having some sort of flashback. He also has no memory of the incident and doesn't know what happened.
I was reading an article last night where Greg was saying he won't remember what happened the day before, but if you hold a conversation with him about his first grade teacher, he'll talk to you about her in length.
Anyway, they're discussing whether criminal charges will be laid upon Verne right now.